TWI602548B - Dental implant fixture - Google Patents

Description

Dental implant fixture

The present invention relates to a dental implant fixture, and more particularly to a dental implant fixture that provides excellent initial stability while minimizing bone stress by shortening the implantation time.

An original implant refers to an alternative to support repair and acts as one of the tissues missing in the human body, and a dental implant refers to a series of surgical procedures for transplanting a denture.

A fixing device made of titanium or the like which is not repelled by the human body is implanted into a toothless alveolar bone to replace a missing root, and then a denture is placed to repair a tooth function.

Although a typical prosthesis or denture will damage adjacent teeth and bone over time, the dental implant does not damage adjacent tooth tissue and also has the same function or shape as an original tooth without causing any voids. Therefore, one of the advantages of dental implants is that they can be used semi-permanently.

Depending on the type of fixation device, there are various ways of performing denture surgery (also known as transplantation or transplant surgery). However, an implant site is typically perforated by a predetermined rig and the fixture is implanted into an alveolar bone and fused into a bone. Then, an abutment is joined to the fixture and crowned with a final prosthesis to complete the transplant surgery.

In addition, dental implants can improve the function of dentures for patients with partial or complete toothlessness and promote the repair of a single missing tooth and improve the aesthetic appearance of the prosthetic restoration. Further, the dental implant can disperse excessive stress applied to adjacent support bone tissue and help stabilize the teeth row.

The implant generally includes a fixation device implanted as a prosthetic root, a support coupled to the fixation device, a support screw for securing the support to the fixation device, and coupling to the support One of the dentures. Here, a healing abutment (not shown) may be performed before the fixation is fixed to the fixation device, ie, during a period of time before the fixation device is fused into the alveolar bone. Coupled to the fixture and maintained in the coupled state.

As an element of the implant, the fixation device is implanted into a bore of one of the alveolar bones for use as a denture root, which is formed by a drill or the like at a position for performing a surgical operation. Therefore, the fixation device must be stably implanted in the alveolar bone.

Therefore, the outer surface of one of the fixing means is formed with a threaded portion (i.e., threaded) so that it can be firmly fixed to the inner wall of one of the alveolar bones forming the bore.

The threaded portion is inserted into the alveolar bone, so that the fixing device can be stably coupled with the alveolar bone, and the contact surface between the fixing device and the alveolar bone is also increased, thereby enhancing the fixation. The stability of the device to the alveolar bone (especially the initial stability).

Therefore, the shape of the threaded portion formed in the fixture of the implant can be critical.

In fact, if a threaded portion having a narrow pitch is formed on the outer surface of the fixture for enhancing the initial stability, the initial stability is enhanced, but the bone stress is increased due to the delay of the implantation time. On the other hand, if a threaded portion having a wide pitch is formed on the outer surface of the fixing device for shortening the implantation time, the implantation time is shortened, but the initial stability may be deteriorated. Therefore, there is a need to develop an alternative structure to provide excellent initial stability while minimizing bone stress by shortening the implantation time.

The present invention will provide a dental fixture that provides excellent initial stability while minimizing bone stress by shortening the implantation time.

According to an aspect of the present invention, a dental implant fixing device includes: a body formed with a collar having a predetermined length in an upper end region thereof; and a threaded portion formed in a spiral shape One of the bodies is on the outer surface. The threaded portion includes: a wide pitch threaded portion formed along an end of the body from an implant end; and a narrow pitch threaded portion formed from one end of the wide pitch threaded portion to the body One of the collar regions and having a pitch that is narrower than a pitch of the wide pitch threaded portion.

The wide pitch threaded portion can include a topmost wide pitch threaded portion that is machined to partially overlap the bottommost narrow pitch threaded portion of the narrow pitch threaded portion.

The wide pitch thread portion may include a square thread, and the narrow pitch thread portion may include a triangular thread.

One of the upper surface and the lower surface of the wide pitch thread portion may be inclined at different angles with respect to a vertical plane at one end thereof.

One of the pitches between the wide pitch thread portions may be 1.5 to 2.5 times larger than a pitch between the narrow pitch thread portions.

When traveling along one of the implant ends of the body, the depth from one end of the threaded portion to the outer surface of the body can be varied.

The virtual contour of one of the threaded ends connecting the threaded portion may include: a first tapered section that gradually expands toward the collar region of the body along one of the implant ends; a vertical section from the first One end of a tapered section is vertically disposed along one of the lengths of the body; and a second tapered section is gradually enlarged toward the collar region of the body along one of the vertical sections.

The collar may have a length of 1.0 mm to 1.5 mm.

The collar region can be processed by anodizing.

The dental implant fixture may further comprise a bevel portion formed on one of the corner regions of the collar.

The dental implant fixture may further include a twist cutting edge portion formed in the wide pitch thread portion along a circumferential direction of the body.

The dental implant fixture may further include a seat coupling portion disposed in an inner region of the upper end region of the body and coupled to an abutment.

The support coupling portion may include: a primary recessed part, in the upper end region of the body, performing a first recess along a length direction of the body; a secondary recessed part a second deeper depression along a length direction of one of the first recesses; and a threaded groove along the length of the body in a central region of the secondary recess Formed and coupled with a seat screw to secure the seat.

The secondary recess may be formed to have a wave shape along a circumferential direction.

The primary recess may include a tapered inner wall, and one of the tapered inner walls tapers from the upper end region toward the lower end region to strongly couple the mount.

BRIEF DESCRIPTION OF THE DRAWINGS The invention and its advantages are fully understood by reference to the accompanying drawings.

Hereinafter, the present invention will be described in detail by explaining embodiments of the invention with reference to the attached drawings. The same reference numerals in the drawings denote the same elements.

1 is a perspective view schematically illustrating a procedure of implanting a dental implant fixture according to an embodiment of the present invention.

As shown in Fig. 1, a plurality of teeth 12 are arranged in the gums 11. Teeth 12 is the main digestive organ used to bite food into small pieces for delivery to the stomach. The number of teeth is usually twenty-eight, but it can vary from person to person.

If one of the teeth 12 is missing (in the case of a missing tooth), the missing tooth 12 not only degrades the appearance but also makes it very inconvenient to chew the food.

Therefore, as a means for replacing the root 12a of the tooth 12, a fixture 100 is implanted in the gum 11 corresponding to the missing tooth 12. Although not shown in detail in Fig. 1, before the fixation device 100 is implanted in the alveolar bone of the gum 11, a drilling operation is performed to implant the fixation device. In other words, a bore H is formed at a predetermined position of the alveolar bone.

The fixture 100 can be made of titanium (Ti) or a titanium alloy that is not repelled by the human body.

As described above, the conventional fixation device (not shown) is implanted into the alveolar bone corresponding to the gingival 11 of the missing tooth 12 as a means for replacing the root 12a of the tooth 12.

However, the conventional dental implant fixture (not shown) not only generally resembles a simple straight screw, but also has a uniform simple structure formed on one of the threaded portions on one of its outer surfaces. Accordingly, there is a need to develop a fixture 100 having an improved structure that provides excellent initial stability while minimizing bone stress by shortening an implant time. In accordance with such needs, the present invention provides a fixture 100 having the improved structure.

For reference, the fixation device 100 according to an embodiment of the present invention may be used for the first transplantation surgery, or may be used for an emergency in the event of a surgical failure, at which time it is directly implanted into a related A damaged bone site is added to the alveolar bone without the use of a predetermined bone substitute.

Fig. 2 is a perspective view of the dental fixture of Fig. 1; Fig. 3 is a view obtained by deleting one of the shapes of a threaded portion from Fig. 2; Fig. 4 is a sectional view of Fig. 2; Figure 5 is a plan view of Figure 2; Figure 6 is an enlarged view of an X area (a) and a Y area (b) of Figure 4; and Figure 7 is a perspective view of a seat; Figure 8 illustrates a dental implant surgery in accordance with an embodiment of the present invention.

Referring to FIG. 2 and other drawings, in the embodiment, the fixing device 100 includes a body 120 and a threaded portion 130. The body 120 is formed with a collar 122 having a predetermined length in an upper end region thereof. The portion 130 is spirally formed on an outer surface of the body 120.

In contrast to the conventional threaded portion, the threaded portion 130 includes a wide pitch threaded portion 131 and a narrow pitch threaded portion 133. The wide pitch thread portion 131 is formed along one longitudinal direction of the body 120 from an implant end portion (see the lower end region of FIG. 2), and the narrow pitch thread portion 133 is formed from one end of the wide pitch thread portion 131. To a collar region of the body 120 and having a pitch that is narrower than a pitch of the wide pitch thread portion 131.

In this embodiment, the body 120 is part of a central stem that forms one of the fixtures 100. The outer surface of the body 120 of the fixture 100 to be implanted in the direction of the arrow of Figure 1 has a straight line profile, but the body 120 has a partial conical shape in this embodiment, wherein the diameter is from the upper end region toward The lower end area is narrowed.

In other words, the body of the prior art fixture (not shown) has a linear profile of a cylindrical structure having the same cross-sectional diameter along its longitudinal direction; but in this embodiment, the body 120 of the fixture 100 has a portion A tapered shape in which the diameter thereof narrows from the upper end region toward the lower end region. Since the body 120 has the tapered structure, it provides advantages that facilitate implantation.

In the fixation device 100 according to an embodiment of the present invention, the body 120 maintains its size, but the threaded portion 130 formed on the outer surface of the body 120 becomes used in a transplant surgery. In this case, if a small-sized fixture is loose, the fixture is pulled out and a slightly larger fixture is implanted to the position. For implanting a fixture larger than the first fixture to a position previously implanted by the first fixture without performing any separate drilling operations and without damaging the adjacent alveolar bone, at least the body 120 The dimensions must be equal.

The collar 122 is formed in an upper end region of the body 120. The length of the collar 122 can be selected from 1.0 mm to 1.5 mm. In this embodiment, the collar 122 has a length of 1.2 mm.

Conventionally, the collar used (not shown) has a length of 1.8 mm or 2.8 mm, so surgery is limited to a limited surgical procedure. However, in this embodiment, the length of the collar 122 can be selected from 1.0 mm to 1.5 mm, in particular, the collar 122 has a length of 1.2 mm, thereby allowing the fixation device 100 to be embedded in the gums for external surgery (ie, The embedding surgery as shown in (b) of Fig. 8 becomes feasible. Therefore, the starting point of the prosthesis is lowered, thereby making the prosthesis aesthetic.

In this embodiment, the collar 122 undergoes anodizing rather than lowering its height, making it more superior in strength than conventional products.

In short, the anodizing treatment is as follows. When a metal (component) is connected to an anode and electrolyzed in a dilute acid solution, oxygen generated in the anode forms an oxide film (alumina: Al ₂ O ₃ ) which is significantly attached to the metal. The anodizing treatment is a combination of an anode and oxidation. Anodizing is different from electroplating in which components are connected to a cathode. The most representative material for anodizing is aluminum (Al). Further, the anodizing treatment can be applied to a metal material such as magnesium (Mg), zinc (Zn), titanium (Ti), tantalum (Ta), hafnium (Hf), and niobium (Nb). Recently, the use of anodized magnesium and titanium has increased.

The collar 122 is formed with a bevel portion 121 in an upper corner region. The beveled portion 121 provides enhanced stability by having a large area of contact with a prosthesis (i.e., a denture) (not shown).

The body 120 is provided with a twist cutting edge portion 123 in its lower end region.

The torsion cutting edge portion 123 is formed on the threaded portion 130 along one circumferential direction of the body 120. Specifically, the torsion cutting edge portion 123 is formed in the wide pitch thread portion 131. The torsion cutting edge portion 123 has a sharp end that can be more easily implanted into the fixture 100.

Further, since the cutting is sequentially performed at the time of execution, the torsion cutting edge portion 123 can minimize the resistance and enable gentle self-tapping.

The torsion cutting edge portion 123 may be formed in the wide pitch thread portion 131 to be inclined toward one side with respect to one longitudinal direction of the body 120. Further, a plurality of torsion cutting edge portions 123 (for example, two torsion cutting edge portions 123) may be formed on the outer surface of the body 120 at the same interval.

Of course, the description does not limit the scope of the invention. Therefore, it is not necessary to form the double torsion cutting edge portion 123 on the outer surface of the body 120.

At the same time, the threaded portion 130 is formed on the outer surface of the body 120, and includes a wide pitch thread portion 131 and a narrow pitch thread portion formed along the length direction of the body 120 from the implant end portion (refer to the lower end region of FIG. 2). 133. The wide pitch thread portion 131 and the narrow pitch thread portion 133 have different shapes and pitches (see P1 and P2 in Fig. 2).

At this time, the pitch P1 (see FIG. 2) between the wide pitch thread portions 131 can be 1.5 times to 2.5 times larger than the pitch P2 (see FIG. 2) between the narrow pitch thread portions 133. For example, the pitch P1 can be twice as large as the pitch P2.

Further, the wide pitch thread portion 131 may be a square thread as shown in (a) of FIG. 6; and the narrow pitch thread portion 133 may be a triangular thread, as shown in FIG. (b) is shown.

Referring to Fig. 6(a), the wide pitch thread portion 131 is a square thread, but the angles θ1 and θ2 of an upper surface 131b and a lower surface 131c which are inclined with respect to a vertical plane 131a may be different from each other.

For example, if the angle θ1 between the vertical plane 131a and the upper surface 131b at one end of the wide pitch thread portion 131 is 80°, the angle θ2 between the vertical plane 131a and the lower surface 131c may be 75°. As a result, the angle θ1 between the vertical plane 131a and the upper surface 131b at the end of the wide pitch thread portion 131 may be greater than the angle θ2 between the vertical plane 131a and the lower surface 131c at the end of the wide pitch thread portion 131.

Further, the narrow pitch thread portion 133, which may be a triangular thread, may have an angle θ3 of about 50° to 70°. For example, the narrow pitch threaded portion 133 may have an angle θ3 of 60°.

Referring to Fig. 2, the topmost wide pitch thread portion 131' of the wide pitch thread portion 131 is machined to partially overlap the narrowest pitch screw portion 133' of the narrowest pitch thread portion 133, so that the wide section is made There may be continuity between the threaded portion 131 and the narrow pitch threaded portion 133.

Since the body 120 has a tapered shape and is formed with a wide pitch thread portion 131 and a narrow pitch thread portion 133 in sections on the outer surface thereof, when traveling toward the implant end of the body 120, the self-thread portion 130 One end of the end to the outer surface of the body 120 may have a large depth.

In other words, the thread of the wide pitch thread portion 131 is deeper than the thread of the narrow pitch thread portion 133, and the thread of the wide pitch thread portion 131 is deeper and deeper. With this configuration, gentle automatic tapping can be performed when implanted, and the initial stability of the reinforcement can be ensured after implantation.

Referring to Figure 3, one of the threaded ends of the threaded portion 130 includes a first tapered section 130a, a vertical section 130b and a second tapered section 130c. The first tapered section 130a is gradually enlarged along an implantation end of the body 120 toward a region of the collar 122 of the body 120, and the vertical section 130b is vertically disposed from one end of the first tapered section 130a along the length of the body 120. And the second tapered section 130c is gradually enlarged along the area of one of the vertical sections 130b toward the collar 122 of the body 120.

Vertical section 130b is used to facilitate implantation of fixation device 100, and first tapered section 130a and second tapered section 130c are used to enhance initial stability. In particular, the first tapered section 130a facilitates determining a safe implantation location while facilitating initial penetration.

Thus, the threaded portion 130 formed on the outer surface of the body 120 is formed as a wide pitch thread portion 131 and a narrow pitch thread portion 133 having different pitches P1 and P2 (refer to FIG. 2), so that The implantation time of the fixation device 100 is shortened to minimize bone stress and can provide excellent initial stability. The narrow pitch threaded portion 133 can shorten the implantation time, while the wide pitch threaded portion 131 can ensure initial stability.

In this embodiment, the threaded portion 130 can undergo a resorbable blasted media (RBM) blasting process. RBM blasting refers to a surface treatment using Ca-P powder, which can advantageously increase the strength.

Meanwhile, referring to FIG. 4, a seat coupling portion 150 is further disposed in an inner region of the upper end region of the body 120 to couple an abutment 200 (see FIG. 7).

Referring to Fig. 7, the holder 200 will be schematically illustrated. The holder 200 is similar in shape to a truncated cone and includes a seat body 210, a primary coupling portion 220, and a secondary coupling portion 230. The holder body 210 is internally formed with a uniform through hole 210a, the primary coupling portion 220 is formed in a lower end region of the holder body 210, and the secondary coupling portion 230 is formed in a lower end region of the primary coupling portion 220. The primary coupling portion 220 is fitted and coupled to one of the primary recessed portions 151 (described later), and the secondary coupling portion 230 is fitted and coupled to one of the abutment coupling portions 150. Secondary recessed part 152. As will be described later, the primary recess 51 has a tapered wall 151a, and the outer surface of one of the primary coupling portions 220 of the mount 200 is also tapered, having the same inclination as the tapered wall 151a. Similarly, the shape of the secondary coupling portion 230 corresponds to the shape of the secondary recess portion 52.

With this configuration, the holder coupling portion 150 coupled to the holder 200 includes a primary recess portion 151, a secondary recess portion 152, and a threaded recess 153. The primary recess 151 is first recessed in the longitudinal direction of the body 120 in the upper end region of the body 120; the second recess 152 is deeper in the longitudinal direction of the body 120 in the lower end region of the primary recess 151. And having a waveform shape along one of the circumferential directions; and the threaded groove 153 is formed in a central region of the second recessed portion 152 in the longitudinal direction of the body 120 and coupled with a seat screw (not shown) to tightly Solid support 200.

The primary recess 151 is one of the positions coupled to the primary coupling portion 220 (see Fig. 7) of the holder 200. At this time, the primary coupling portion 220 of the holder 200 must be strongly or tightly coupled to the primary recess 151 of the fixture 100. Strong coupling prevents easy release, and tight coupling creates a seal and eliminates concerns about infection.

Therefore, the inner wall of the primary recessed portion 151 forms a tapered wall 151a, and the diameter of one of the tapered walls 151a gradually decreases from the upper end region toward the lower end region. Similar to an outer inclination angle of one of the primary coupling portions 220 of the holder 200, one of the tapered walls 151a may have an inclination angle of between 2 and 6 degrees. If the primary recess 151 is machined to have a tapered wall 151a at an oblique angle of the range, and the support 200 is coupled to the primary recess 151, the primary coupling portion 220 of the mount 200 can be strongly and tightly coupled to form There is a primary recess 151 of the tapered wall 151a.

The secondary recessed portion 152 is a position where the secondary coupling portion 230 of the holder 200 is fitted and coupled after passing through the primary recessed portion 151. As shown in Fig. 7, the secondary coupling portion 230 of the holder 200 is formed to resemble a waveform, and the secondary recess portion 152 is also shaped like a waveform in the circumferential direction (for example, an octagonal waveform) The second coupling portion 230 and the secondary recess portion 152 can cooperate with each other. However, the present invention is not limited to the above shape. Thereby, the secondary coupling portion 230 of the holder 200 is fitted and coupled to the secondary recess portion 152, thereby preventing the support 200 from rotating.

The threaded groove 153 is configured to pass through the support 200 when the primary coupling portion 220 and the secondary coupling portion 230 of the support 200 are respectively fitted and coupled to the primary recessed portion 151 and the secondary recessed portion 152 of the abutment coupling portion 150. A seat screw (not shown) through the hole 210a is fastened in one position. Such a threaded groove 153 is formed to have the same size as the through hole 210a of the holder 200.

Using the fixation device 100 having such a configuration, a transplant surgery is performed as described below.

First, the implantation site is perforated by a predetermined rig to form a bore H as shown in Fig. 1. At this time, the bore H is perforated to have a diameter that is not particularly small but is close to the diameter of the general borehole (i.e., the size of the fixture 100).

Next, the fixation device 100 of this embodiment is placed in the implantation position, and then implanted into the fixation device 100 by inserting the fixation device 100 into the borehole H of the alveolar bone.

Here, the fixing device 100 is implanted by the structural characteristics of the wide pitch thread portion 131 and the narrow pitch thread portion 133 and the torsion cutting edge portion 123, thereby shortening the implantation time, thereby minimizing bone stress and providing Excellent initial stability.

Specifically, in this embodiment, the fixation device 100 includes a collar 122 having a length of 1.0 mm to 1.5 mm (e.g., 1.2 mm), so that the insertion of the fixation device 100 into the gum can be selectively performed. Surgery (see Figure 8 (b)) or non-burial surgery in which the fixation device 100 is not embedded in the gum and the collar 122 is exposed upwards (see Figure 8 (a)). In the case of an external surgery as shown in Fig. 8(b), the starting point of the prosthesis is placed downward to make the prosthesis aesthetic.

After the fixation device 100 is fully implanted, when the fixation device 100 is to be fused into the bone, the support 200 (refer to FIG. 7) is coupled to the abutment coupling portion 150 of the fixation device 100. The stent 200 is then crowned with the final prosthesis to complete the transplant surgery.

According to the fixture 100 having such an exemplary configuration, excellent initial stability is provided while at the same time minimizing bone stress by shortening the implantation time.

As described above, there is provided a dental fixture that provides excellent initial stability while minimizing bone stress by shortening the implantation time.

While the invention has been particularly shown and described with reference to the embodiments of the present invention, it is understood that the invention may be modified in various forms and details without departing from the spirit and scope of the invention.

11. . . Gum

12. . . tooth

12a. . . Root

100. . . Fixtures

120. . . Ontology

121. . . Beveled

122. . . collar

123. . . Torsion cutting edge

130. . . Thread part

130a. . . First tapered section

130b. . . Vertical section

130c. . . Second tapered section

131. . . Wide pitch thread

131’. . . Topmost wide pitch thread

131a. . . Vertical plane

131b. . . Upper surface

131c. . . lower surface

133. . . Narrow pitch thread

133’. . . Bottom narrow pitch thread

150. . . Support coupling

151. . . Once depressed

151a. . . Conical wall

152. . . Secondary depression

153. . . Thread groove

200. . . Support

210. . . Support body

210a. . . Through hole

220. . . Primary coupling

230. . . Secondary coupling part H drilling

P1. . . Pitch

P2. . . Pitch

Y. . . region

Θ1. . . angle

Θ2. . . angle

Θ3. . . angle

The embodiments of the present invention will be more clearly understood from the following detailed description,

1 is a perspective view schematically illustrating a procedure of implanting a dental implant fixture according to an embodiment of the present invention;

Figure 2 is a perspective view of the dental fixture of Figure 1;

Figure 3 is a view obtained by deleting the shape of one of the threaded portions from Fig. 2;

Figure 4 is a cross-sectional view of Figure 2;

Figure 5 is a plan view of Figure 2;

Figure 6 is an enlarged view of an X area (a) and a Y area (b) of Figure 4;

Figure 7 is a perspective view of a seat;

Fig. 8 illustrates a dental implant surgery in accordance with an embodiment of the present invention.

100. . . Fixtures

120. . . Ontology

121. . . Beveled

122. . . collar

123. . . Torsion cutting edge

130. . . Thread part

131. . . Wide pitch thread

131’. . . Topmost wide pitch thread

133. . . Narrow pitch thread

133’. . . Bottom narrow pitch thread

150. . . Support coupling

P1. . . Pitch

P2. . . Pitch

Claims (12)

A dental implant fixing device comprising: a body formed with a collar having a predetermined length in an upper end region thereof; and a bevel portion formed on one of the collar regions; a threaded portion formed on one of the outer surfaces of the body in a spiral shape, the threaded portion comprising: a wide pitch thread portion formed along an length of one of the implant ends; and a narrow pitch a threaded portion formed from one end of the wide pitch threaded portion to a collar region of the body and having a pitch narrower than a pitch of the wide pitch threaded portion; and a twisting cutting edge portion (twist) a cutting edge portion, the torsion cutting edge portion is formed in the wide pitch thread portion along a circumferential direction of the body; wherein the virtual contour of one of the thread ends connecting the thread portion comprises: a first tapered portion And gradually extending along an insertion end of the body toward the collar portion of the body; a vertical section disposed perpendicularly from one end of the first tapered section along a length of the body; and a second a tapered section along one end of the vertical section The neck area of the body of gradually expanding. The dental implant fixture of claim 1, wherein the wide pitch threaded portion includes a topmost wide pitch threaded portion that is machined to be one of the narrowest pitch thread portions The bottom end narrow pitch thread portions partially overlap. The dental implant fixture of claim 1, wherein the wide pitch threaded portion comprises a square thread and the narrow pitch threaded portion comprises a triangular thread. The dental implant fixture of claim 3, wherein the upper surface and the lower surface of the wide pitch threaded portion are inclined at different angles with respect to a vertical plane at one end thereof. The dental implant fixture of claim 1, wherein a pitch between the wide pitch thread portions is 1.5 to 2.5 times greater than a pitch between the narrow pitch thread portions. The dental implant fixture of claim 1, wherein a depth from the end of the threaded portion to the outer surface of the body becomes greater as it travels along the implanted end of the body. The dental implant fixture of claim 1, wherein the collar has a length of from 1.0 mm to 1.5 mm. The dental implant fixture of claim 1, wherein the collar region is processed by anodizing. The dental implant fixture of claim 1, further comprising a seat coupling portion disposed in an inner region of the upper end region of the body and coupled to an abutment. The dental implant fixation device of claim 9, wherein the abutment coupling portion comprises: a primary recessed part, the first time in a length direction of the body in the upper end region of the body a recessed portion; a second recessed portion, in a lower end region of the recess, a second deeper recess along a length of the body And a threaded groove formed in a central region of the second recess along the length of the body and coupled to the seat screw to fasten the seat. The dental implant fixture of claim 10, wherein the secondary recess is formed to have a wave shape along a circumferential direction. The dental implant fixture of claim 10, wherein the primary recess includes a tapered inner wall, and a diameter of one of the tapered inner walls gradually decreases from the upper end region toward the lower end region to be strongly close Coupling the support.